Andrzej has left the army, and appears to drift around the country participating in boxing fights. In an industrial town, he runs into Teresa, a government engineer, who has arrived to implement a new project at a factory. Andrzej wins in a local boxing match, but decides to leave with Teresa instead of facing a much stronger opponent the next day.

Andrzej has left the army, and appears to drift around the country participating in boxing fights. In an industrial town, he runs into Teresa, a government engineer, who has arrived to implement a new project at a factory. Andrzej wins in a local boxing match, but decides to leave with Teresa instead of facing a much stronger opponent the next day.

In the 15th century the Polish-Lithuanian Commonwealth is facing a hard struggle against the neighboring Teutonic Order.Frequent clashes between the two powers finally culminate in 1410 with the Battle of Grunwald.